AgTruck - One 225kW (300hp) Continental IO-520-D fuel injected flat six piston engine driving a two blade fixed pitch or three blade constant speed McCauley propeller.
AgHusky - One 230kW (310hp) Continental TSIO-520-T turbocharged and fuel injected flat six driving a three blade constant speed McCauley prop.
AgTruck - Max speed 196km/h (106kt), max cruising speed 187km/h (101kt). Initial rate of climb 465ft/min. Service ceiling 7800ft/min. Range with max fuel and reserves at 75% power 465km (252nm).
AgHusky - Max speed 209km/h (113kt), max cruising speed (75% power) 196km/h (106kt). Initial rate of climb 510ft/min. Certificated service ceiling 14,000ft. Range with max fuel and reserves at max cruising speed 402km (217nm).
AgTruck - Empty 1015kg (2235lb), max takeoff 1495kg (3300lb), max takeoff restricted ag category 1905kg (4200lb).
AgHusky - Empty 1045kg (2305lb), max takeoff restricted ag category 1995kg (4400lb).
AgTruck - Wing span 12.70m (41ft 8in), length 7.90m (25ft 11in), height 2.49m (8ft 2in). Wing area 19.1m2 (205sq ft).
AgHusky - Same except for length 8.08m (26ft 6in).
Pilot only in all models. Standard hopper capacity of 757 litres (166Imp gal/200US gal) for Agwagon & AgPickup; AgTruck & AgHusky have a 1059 litre (233Imp gal/280US gal) capacity.
Approximate total of 3975 including 53 AgPickups, 1589 Agwagons, 1949 AgTrucks and 385 AgHuskies.
The successful 188 Agwagon agricultural aircraft were Cessna's only purpose designed agplanes.
Cessna's Model 188 resulted from extensive research and consultation with agricultural aircraft operators conducted in the early 1960s. The design Cessna settled upon was of the conventional agricultural aircraft arrangement with a braced low wing (unique among Cessna singles) with seating for the pilot only. Like other ag aircraft the chemical hopper is of fibreglass and the rear fuselage is of semi monocoque construction and sealed to reduce the potential for damage from chemical contamination.
The prototype Cessna 188 Agwagon flew for the first time on February 19 1965, and type approval was awarded the following February. The 188 was initially offered in two forms, the 170kW (230hp) Continental O-470-R powered 188 (which was named the AgPickup from 1972) and the 250kW (300hp) Continental IO-520-D powered 188A Agwagon.
The 1972 model year also saw the introduction of the most successful 188 model, the AgTruck. The AgTruck has the same powerplant as the Agwagon, but a larger hopper and a higher max takeoff weight. The ultimate 188 model is the AgHusky, which was introduced in 1979. It features a turbocharged TSIO-520-T and a further increased max takeoff weight.
Production of the AgPickup was suspended in 1976, the Agwagon in 1981 and the AgTruck and AgHusky in 1985, when all Cessna light aircraft production ceased.